PROBLEM TO BE SOLVED: To provide a vehicular steering device capable of suppressing deviation of a steering angle due to oil leakage.SOLUTION: A vehicular steering device 1 includes: a power cylinder 11 coupled to a steering shaft 10; and a helm pump 12 for supplying hydraulic oil to the power cylinder 11 in accordance with the operation of a steering member 2. The vehicular steering device 1 also includes: a rotation angle differential mechanism 5 including a differential mechanism 7 for connecting an input shaft 3 connected to the steering member 2 and an output shaft 4 connected to the helm pump 12 to each other in a differentially rotatable manner, and a differential mechanism driving motor 8 for changing a rotation angle difference between the input shaft 3 and the output shaft 4 by driving the differential mechanism 7; a steering angle sensor 19 for detecting a steering angle θof the input shaft 3; a steering angle sensor 24 for detecting a steering angle θof a steering wheel 9; and an ECU 25 for controlling a rotation angle of the differential mechanism driving motor 8 so that the steering angle θis equal to a predetermined target steering angle.SELECTED DRAWING: Figure 1
【課題】油漏れによる転舵角のずれを抑制できる車両用操舵装置を提供する。【解決手段】車両用操舵装置1は、転舵軸10に結合されたパワーシリンダ11と、操舵部材2の操作に応じてパワーシリンダ11へ作動油を供給するヘルムポンプ12とを含む。さらに車両用操舵装置1は、操舵部材2に連結された入力軸3およびヘルムポンプ12に連結された出力軸4を差動回転可能に連結する差動機構7と、差動機構7を駆動することにより入力軸3と出力軸4との間の回転角度差を変化させる差動機構駆動用モータ8とを含む回転角差動機構5と、入力軸3の操舵角θSを検出する操舵角センサ19と、転舵輪9の転舵角θTを検出する転舵角センサ24と、転舵角θTが、所定の目標転舵角と等しくなるように差動機構駆動用モータ8の回転角を制御するECU25とを含む。【選択図】図1
VEHICULAR STEERING DEVICE
車両用操舵装置
05.09.2016
Patent
Elektronische Ressource
Japanisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |